Sunspot drawing of 1981-2-4

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https://doi.org/10.7891/e-manuscripta-139166



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1981-02-04
10:30
Hs 1304.6:33
https://doi.org/10.7891/e-manuscripta-139166
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
39 4 9 G -13 105
42 4 8 C 14 91
43 14 16 C -11 84
44 2 2 B -17 85
48 2 2 B 14 71
49 2 5 H 19 61
50 9 9 B -8 59
51 2 2 B 17 55
57 3 4 B -17 100
58 7 11 B -15 65
60 1 1 A 14 8
61 6 8 C 4 61
62 1 3 J 12 343
13 57 80